Arnold D Seifer

Title: Arnold D. Seifer and Passive Geolocation Innovation.

Introduction

Arnold D. Seifer is an inventor associated with Nashua, New Hampshire, and BAE Systems Information and Electronic Systems Integration Inc. His work includes a patented method for locating an emitter of unknown frequency through passive signal analysis.

Latest Patents

The provided information identifies one patent associated with Seifer: “Method and Apparatus for Passive Geolocation Using Synthetic-Aperture Processing.” The invention analyzes the in-phase and quadrature components of a received signal, combining spatial and temporal information to calculate a maximum-likelihood coefficient for estimating an emitter’s location.

In one embodiment, the method generates an iso-Doppler contour and identifies regions of high correlation. Its maximum-likelihood calculation combines a factor derived from a single aperture with one derived from bearing estimates. Hypothesized in-phase and quadrature signals represent what an aperture would receive from an emitter at a specified frequency and location, and these estimates support the location calculation. The supplied data lists 1 patent for Seifer.

Career Highlights

Seifer’s listed patent concerns passive geolocation, a technique for estimating an emitter’s position from received signals rather than relying on direct cooperation from the emitter. The patent record connects this work with BAE Systems Information and Electronic Systems Integration Inc.

Collaborations

Donald Spencer is identified as Seifer’s coworker. The available information does not specify a particular joint patent or project between them.

Conclusion

Arnold D. Seifer’s documented invention applies synthetic-aperture processing and signal correlation to passive geolocation, reflecting his contribution to location-estimation technology.